Creation of Pop Rocks. Mason White, Alex Tuan. The Purpose of this lab was to create Pop Rocks that, when dissolved, produced a comparable amount of CO2 as Pop Rocks made through industrial means. In this lab, the ideal gas law, mole to mole ratios, balanced equations, solubility, and elevated boiling points are all important concepts at work. By applying these concepts, it was determined that 8.2 g Citric acid should be mixed with 10.8 g Sodium Bicarbonate (Baking Soda) inside a 24 oz stainless steel water bottle, in order to create 100 psi by the production of CO2. When the amount of CO2 contained in 4.8 grams of lab Pop Rocks was compared to the amount of CO2 inside 4.8 grams of industrial Pop Rocks, it was discovered that the Lab Pop Rocks contained approximately 12 ml of CO2 where the store bought Pop Rocks contained approximately 1/4 ml CO2. In other words the Lab Pop Rocks contain roughly 48 times as much CO2. On the second trial, the store bought Pop Rocks released ¼ ml of CO2, where the lab Pop Rocks released 18 ml CO2, approximately 72 times as much gas. The dramatic increase in gas containment is thought to be due to improved gas trapping abilities as well as slight variations in the amount of citric acid and sodium bicarbonate used. Ideal Gas Law (PV=NRT) Balanced Equations Solubility Elevated boiling point Mole to Mole ratios
Ideal Gas Law (PV=NRT)
Balanced Equations
Solubility
Elevated boiling point
Mole to Mole ratios
Kleiner, F. (1981, September 15). United States Patent: 4289794. patft » Page 1 of 1 . Retrieved May 25, 2011, from
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